Sun Ryno-lite rims- tire removal issues

So I just put together a new to me fully rigid instigator, got sun rhyno-lite rims with maxxis holy roller tires. I had read about the rims being difficult to put tires on but wasnt too bad putting them on. Then I decided to hit up some trails this weekend so I got a 2.4 inch tire to put on the front, tried to get the holy roller off and wtf, I try really freaking hard and cannot get the tire off so eventually I just give up and reinflate the holy roller, leaving it on till I can figure out how to get it off without destroying the tire. Any advice? Anyone have any experience with this? Thanks

I like my rhyno lite. yeah there are nicer rims, but i can get a new RL for under 20 bucks usually so why buy anything else. I can usually get my tire off and back on in a couple minuites. You just have to learn how to make it work.